Is it possible to learn basic SQL without a formal class training?

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Microsoft SQL , MSBI Real-time work trainer

yes, just cover below few topics. 1) SQL datatypes 2) object creation and alter 3) data population (insert/update/delete) 4) system defined functions 5) JOINs
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yes, just cover below few topics. 1) SQL datatypes 2) object creation and alter 3) data population (insert/update/delete) 4) system defined functions 5) JOINs read less
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I want to teach, how can I?
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I need your help to choose my career as I have three years of gap between my education. I know SQL. Can anyone tell me should I choose MS SQL server or oracle because I am interested in the database? Which one will be better to learn to get into the IT industry? Please help me! Thank you!
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